* {
    margin: 0;
    padding: 0;
    font-family: "Microsoft yahei", serif;
}

li {
    list-style: none;
}

html,
body {
    overflow: hidden;
    width: 100%;
    height: 100%;
    background: black;
}

canvas {
    -box-shadow: inset 0 0 60px rgba(255, 255, 255, 0.6)
}

#frame {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    perspective: 800px;
}

#frame .readme {
    position: absolute;
    left: 50%;
    top: 30px;
    padding: 10px;
    transform: translateX(-50%);
    font-size: 18px;
    color: rgba(127, 255, 255, 1);
    cursor: pointer;
}

#frame .readme .hide {
    position: absolute;
    top: 44px;
    left: -170px;
    width: 400px;
    padding: 20px;
    border: 1px solid rgba(127, 255, 255, 1);
    color: rgba(127, 255, 255, 1);
    font-size: 14px;
}

#list {
    position: absolute;
    transform: translateZ(-1200px);
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
}

#list ul {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120px;
    height: 160px;
    margin-left: -60px;
    margin-top: -80px;
    transform-style: preserve-3D;
    transform: translateZ(-1800px) rotateX(0deg) rotateY(0deg);
}

#list ul li {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 127, 127, 0.5);
    border: 1px solid rgba(127, 255, 255, 0.25);
    box-shadow: 0 0 12px rgba(0, 255, 255, 0.5);
    line-height: 50px;
    text-align: center;
    color: #fff;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: 3s cubic-bezier(.94, .02, .49, .98);
}

#btn {
    position: absolute;
    left: 20px;
    bottom: 20px;
    height: 32px;
}

#btn ul li {
    float: left;
    height: 30px;
    line-height: 30px;
    border: 1px solid rgba(127, 255, 255, 1);
    color: rgba(127, 255, 255, 1);
    padding: 0 10px;
    font-size: 12px;
    font-weight: bold;
    margin: 0 5px;
    border-radius: 3px;
    cursor: pointer;
}

#btn ul li:hover {
    background: rgba(0, 127, 127, 0.8);
}

#btn ul li.click {
    background: rgba(0, 127, 127, 0.8);
}

#alert {
    display: none;
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%;
    opacity: 0;
    transform: rotateY(0deg) scale(2);
    transform-style: preserve-3d;
}

#alert,
#alert .title,
#alert .pic,
#alert .annotation,
#alert .content {
    background: rgba(0, 127, 127, 0.5);
    border: 1px solid rgba(127, 255, 255, 0.25);
    box-shadow: 0 0 12px rgba(0, 255, 255, 0.5);
    color: #fff;
}

#alert .title {
    position: absolute;
    top: 10%;
    left: 25%;
    height: 7%;
    width: 50%;
    background-color: rgba(0, 0, 0, .5);
    font-weight: bold;
}

#alert .title span {
    display: block;
    position: absolute;
    top: 50%;
    width: 100%;
    font-size: 18px;
    text-align: center;
    transform: translateY(-50%);
}

#alert .pic {
    display: block;
    position: absolute;
    left: 10%;
    top: 30%;
    width: 30%;
    height: 57%;
    background-color: rgba(0, 0, 0, .5);
}

#alert .annotation {
    position: absolute;
    right: 10%;
    top: 30%;
    width: 35%;
    height: 4%;
    font-size: 16px;
    padding: 5px;
    text-align: center;
    background-color: rgba(0, 0, 0, .5);
}

#alert .content {
    position: absolute;
    right: 10%;
    top: 40%;
    width: 33%;
    height: 43%;
    font-size: 14px;
    padding: 13px;
    background-color: rgba(0, 0, 0, .5);
}